Filtering and purifying device for radioactive industrial waste water

Abstract

The invention discloses a filtering and purifying device for radioactive industrial waste water, wherein the outer side of a sludge concentration tank is provided with a power switch which is electrically connected with a heating wire; a conveying groove is arranged at the bottom of the inner side of a sludge settling tank; the left side of the conveying groove is communicated with the sludge concentration tank through a drainage pipe; one side of the drainage pipe is provided with a gate valve, the top of the sludge settling tank is provided with a water inlet, the top side of the sludge settling tank is provided with a support frame, and the outer side of the support frame is welded with a guide cylinder; the device is used for flocculating and settling the industrial waste water throughthe sludge settling tank, filtering the impurities in the water through a filter screen, and filtering by using a reverse osmosis membrane to obtain pure water, the filtration burden of the reverse osmosis membrane is reduced, and the sludge is concentrated through the sludge concentration tank, facilitating the transportation and sealing of the sludge; the device performs reverse cleaning on thefilter screen and the reverse osmosis membrane by using the water injected by a second water pump, thereby improving the service life of the filter screen and reverse osmosis membrane.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a filtering and purifying device for radioactive industrial wastewater. Background technique [0002] With the wide application of radionuclides in military, energy, industry, agriculture, medicine and other fields, their mining, smelting, processing and application will produce a certain amount of radioactive wastewater and discharge it into the water environment. These wastewaters are harmful to the ecological environment and human beings. The health hazards are serious and far-reaching. At home and abroad, extremely low-level radioactive wastewater is usually discharged into waters, and made harmless by dilution and diffusion. For the treatment of low, medium and high-level radioactive wastewater, the waste water concentration product is generally isolated from the human living environment for a long time after solidification , let it decay naturally. It is desi...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a radioactive industrial wastewater filtration and purification device to solve the problem that the existing wastewater treatment devices proposed in the above-mentioned background technology mostly use membrane permeation for filtration treatment. After a period of time, it is easy to affect the filtration effect and reduce the service life of the membrane due to the clogging of impurities in the water

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